Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_07addebfc9446dc5a9a77692ebf4dac1 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C315-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C315-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C319-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C335-32 |
classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-60 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C335-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C315-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C319-14 |
filingDate |
2004-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2007-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0c04a9c1985eab4709b541cc677974a |
publicationDate |
2007-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
US-7244865-B2 |
titleOfInvention |
Process for preparing benzhydrylthioacetamide |
abstract |
The present invention is directed to an improved process for preparing modafinil wherein benzhydrylthioacetamide is prepared in high yield and purity by the reaction of a haloacetamide with the reaction product of thiourea and benzhydrol in aqueous solution. The reaction employing the haloacetamide is conducted in a solvent comprising water and an organic solvent such as dimethylformamide having dissolved therein a basic salt such as potassium carbonate. The resulting benzhydrylthioacetamide can be oxidized to provide the pharmaceutical modafinil. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008319227-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11013730-B1 |
priorityDate |
2003-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |